<?php
if (!defined('IS_INITPHP')) exit('Access Denied!');   
/*********************************************************************************
 * InitPHP 3.8.1 国产PHP开发框架   扩展类库-邮件发送类
 *-------------------------------------------------------------------------------
 * 版权所有: CopyRight By initphp.com
 * 您可以自由使用该源码，但是在使用过程中，请保留作者信息。尊重他人劳动成果就是尊重自己
 *-------------------------------------------------------------------------------
 * $Author:网络 $Dtime:2014-9-3 
***********************************************************************************/
class emailInit {

	var $smtp_port;
	var $time_out;
	var $host_name;
	var $log_file;
	var $relay_host;
	var $debug;
	var $auth;
	var $user;
	var $pass;
	var $sock;

	public function config($relay_host = "", $smtp_port = 25,$auth = false,$user,$pass) {
		$this->debug = FALSE;
		$this->smtp_port = $smtp_port;
		$this->relay_host = $relay_host;
		$this->time_out = 30; //is used in fsockopen()
		$this->auth = $auth;//auth
		$this->user = $user;
		$this->pass = $pass;
		$this->host_name = "localhost"; //is used in HELO command
		$this->log_file ="";
		$this->sock = FALSE;
	}

	public function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "") {
		$mail_from = $this->get_address($this->strip_comment($from));
		$body = ereg_replace("(^|(\r\n))(\\.)", "\\1.\\3", $body);
		$header .= "MIME-Version:1.0\r\n";
		if($mailtype=="HTML"){
		$header .= "Content-Type:text/html;charset=utf-8 \r\n";
		}
		$header .= "To: ".$to."\r\n";
		if ($cc != "") {
		$header .= "Cc: ".$cc."\r\n";
		}
		$header .= "From: $from<".$from.">\r\n";
		$header .= "Subject: ".$subject."\r\n";
		$header .= $additional_headers;
		$header .= "Date: ".date("r")."\r\n";
		$header .= "X-Mailer:By Redhat (PHP/".phpversion().")\r\n";
		list($msec, $sec) = explode(" ", microtime());
		$header .= "Message-ID: <".date("YmdHis", $sec).".".($msec*1000000).".".$mail_from.">\r\n";
		$TO = explode(",", $this->strip_comment($to));
		
		if ($cc != "") {
		$TO = array_merge($TO, explode(",", $this->strip_comment($cc)));
		}
		
		if ($bcc != "") {
		$TO = array_merge($TO, explode(",", $this->strip_comment($bcc)));
		}
		
		$sent = TRUE;
		foreach ($TO as $rcpt_to) {
		$rcpt_to = $this->get_address($rcpt_to);
		if (!$this->smtp_sockopen($rcpt_to)) {
		$this->log_write("Error: Cannot send email to ".$rcpt_to."\n");
		$sent = FALSE;
		continue;
		}
		if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) {
		$this->log_write("E-mail has been sent to <".$rcpt_to.">\n");
		} else {
		$this->log_write("Error: Cannot send email to <".$rcpt_to.">\n");
		$sent = FALSE;
		}
		fclose($this->sock);
		$this->log_write("Disconnected from remote host\n");
		}
		//echo "<br>";
		//echo $header;
		return $sent;
	}

	private function smtp_send($helo, $from, $to, $header, $body = "") {
		if (!$this->smtp_putcmd("HELO", $helo)) {
		return $this->smtp_error("sending HELO command");
		}
		#auth
		if($this->auth){
		if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user))) {
		return $this->smtp_error("sending HELO command");
		}
		
		if (!$this->smtp_putcmd("", base64_encode($this->pass))) {
		return $this->smtp_error("sending HELO command");
		}
		}
		#
		if (!$this->smtp_putcmd("MAIL", "FROM:<".$from.">")) {
		return $this->smtp_error("sending MAIL FROM command");
		}
		
		if (!$this->smtp_putcmd("RCPT", "TO:<".$to.">")) {
		return $this->smtp_error("sending RCPT TO command");
		}
		
		if (!$this->smtp_putcmd("DATA")) {
		return $this->smtp_error("sending DATA command");
		}
		
		if (!$this->smtp_message($header, $body)) {
		return $this->smtp_error("sending message");
		}
		
		if (!$this->smtp_eom()) {
		return $this->smtp_error("sending <CR><LF>.<CR><LF> [EOM]");
		}
		
		if (!$this->smtp_putcmd("QUIT")) {
		return $this->smtp_error("sending QUIT command");
		}
		
		return TRUE;
	}

	private function smtp_sockopen($address)
	{
		if ($this->relay_host == "") {
		return $this->smtp_sockopen_mx($address);
		} else {
		return $this->smtp_sockopen_relay();
		}
	}

	private function smtp_sockopen_relay()
	{
		$this->log_write("Trying to ".$this->relay_host.":".$this->smtp_port."\n");
		$this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);
		if (!($this->sock && $this->smtp_ok())) {
		$this->log_write("Error: Cannot connenct to relay host ".$this->relay_host."\n");
		$this->log_write("Error: ".$errstr." (".$errno.")\n");
		return FALSE;
		}
		$this->log_write("Connected to relay host ".$this->relay_host."\n");
		return TRUE;;
	}

	private function smtp_sockopen_mx($address) {
		$domain = ereg_replace("^.+@([^@]+)$", "\\1", $address);
		if (!@getmxrr($domain, $MXHOSTS)) {
		$this->log_write("Error: Cannot resolve MX \"".$domain."\"\n");
		return FALSE;
		}
		foreach ($MXHOSTS as $host) {
		$this->log_write("Trying to ".$host.":".$this->smtp_port."\n");
		$this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);
		if (!($this->sock && $this->smtp_ok())) {
		$this->log_write("Warning: Cannot connect to mx host ".$host."\n");
		$this->log_write("Error: ".$errstr." (".$errno.")\n");
		continue;
		}
		$this->log_write("Connected to mx host ".$host."\n");
		return TRUE;
		}
		$this->log_write("Error: Cannot connect to any mx hosts (".implode(", ", $MXHOSTS).")\n");
		return FALSE;
	}

	private function smtp_message($header, $body) {
		fputs($this->sock, $header."\r\n".$body);
		$this->smtp_debug("> ".str_replace("\r\n", "\n"."> ", $header."\n> ".$body."\n> "));
		return TRUE;
	}

	private function smtp_eom() {
		fputs($this->sock, "\r\n.\r\n");
		$this->smtp_debug(". [EOM]\n");
		
		return $this->smtp_ok();
	}

	private function smtp_ok() {
		$response = str_replace("\r\n", "", fgets($this->sock, 512));
		$this->smtp_debug($response."\n");
		
		if (!ereg("^[23]", $response)) {
		fputs($this->sock, "QUIT\r\n");
		fgets($this->sock, 512);
		$this->log_write("Error: Remote host returned \"".$response."\"\n");
		return FALSE;
		}
		return TRUE;
	}

	private function smtp_putcmd($cmd, $arg = "") {
		if ($arg != "") {
		if($cmd=="") $cmd = $arg;
		else $cmd = $cmd." ".$arg;
		}

		fputs($this->sock, $cmd."\r\n");
		$this->smtp_debug("> ".$cmd."\n");
		
		return $this->smtp_ok();
	}

	private function smtp_error($string) {
		$this->log_write("Error: Error occurred while ".$string.".\n");
		return FALSE;
	}

	private function log_write($message) {
		$this->smtp_debug($message);
		
		if ($this->log_file == "") {
		return TRUE;
		}

		$message = date("M d H:i:s ").get_current_user()."[".getmypid()."]: ".$message;
		if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, "a"))) {
		$this->smtp_debug("Warning: Cannot open log file \"".$this->log_file."\"\n");
		return FALSE;
		}
		flock($fp, LOCK_EX);
		fputs($fp, $message);
		fclose($fp);
		
		return TRUE;
	}

	private function strip_comment($address) {
		$comment = "\\([^()]*\\)";
		while (ereg($comment, $address)) {
		$address = ereg_replace($comment, "", $address);
		}

		return $address;
	}

	private function get_address($address) {
		$address = ereg_replace("([ \t\r\n])+", "", $address);
		$address = ereg_replace("^.*<(.+)>.*$", "\\1", $address);
		
		return $address;
	}

	private function smtp_debug($message) {
		if ($this->debug) {
		echo $message."<br>";
		}
	}

	private function get_attach_type($image_tag) { //
	
		$filedata = array();
		
		$img_file_con=fopen($image_tag,"r");
		unset($image_data);
		while ($tem_buffer=AddSlashes(fread($img_file_con,filesize($image_tag))))
		$image_data.=$tem_buffer;
		fclose($img_file_con);
		
		$filedata['context'] = $image_data;
		$filedata['filename']= basename($image_tag);
		$extension=substr($image_tag,strrpos($image_tag,"."),strlen($image_tag)-strrpos($image_tag,"."));
		switch($extension){
		case ".gif":
		$filedata['type'] = "image/gif";
		break;
		case ".gz":
		$filedata['type'] = "application/x-gzip";
		break;
		case ".htm":
		$filedata['type'] = "text/html";
		break;
		case ".html":
		$filedata['type'] = "text/html";
		break;
		case ".jpg":
		$filedata['type'] = "image/jpeg";
		break;
		case ".tar":
		$filedata['type'] = "application/x-tar";
		break;
		case ".txt":
		$filedata['type'] = "text/plain";
		break;
		case ".zip":
		$filedata['type'] = "application/zip";
		break;
		default:
		$filedata['type'] = "application/octet-stream";
		break;
		}
		
		
		return $filedata;
	}

}
